A169996 Number of 2n-vertex 4-dissections on a cylinder.

3, 112, 1902, 23396, 243698, 2299064

Offset

3,1

Links

Table of n, a(n) for n=3..8.

Juanjo Rué, Enumeration and limit laws of dissections on a cylinder, Discrete Math., 310 (2010), 2519-2541.

Formula

The reference gives an explicit g.f.

Crossrefs

Cf. A169997.

Sequence in context: A128684 A292336 A037116 * A054330 A024043 A199640

Adjacent sequences: A169993 A169994 A169995 * A169997 A169998 A169999

Keyword

nonn,more

Author

N. J. A. Sloane, Aug 29 2010

Status

approved